Breed

[SneazzL.com]

This is a question that doesnt stand in the breeding quide!!!
How do i get Rock Slide and Earthquake on Onix I dont have tm any more so can any one help me

 

[Jon_Sly]

Well in emerald you can get rock slide at the battle frontier. As for earthquake you could breed it with someone who was taught earthquake with that tm to learn it and I believe he will to correct me if I am wrong. Other then that onix can't learn earthquake just by breading with someone. He can learn rock slide if you don't have emerald through breading not sure who though.

 

[Expert Evan]

Rock slide:
Nosepass -> geodude -> onix

Earthquake/Explosion:
geodude -> onix

Toxic (as 4th move):
roselia -> snorunt -> nosepass -> geodude -> onix

 

[Magma Instinct]

You could just well, Onix eventually learns Earthquake.

-Instinct

 

[SneazzL.com]

Yes the male's can breeed tm over

 

[cameron mathena]

if you have an onix that knows rock slide and earth quake
the baby onix will inherite those moves as long as the male knows those
moves

 

[Jon_Sly]

You could just well, Onix eventually learns Earthquake.

-Instinct

Onix doesn't learn earthquake on its own.

http://www.serebii.net/pokedex-rs/095.shtml